| Tournament | Round | Colleen Walker | Olga Visser |
| 05.02.2006 Kempsey Challenge (NSW) | 9 | 319 | 401 |
| 01.10.2007 New South Wales Champs (NSW) | 1 | 276 | 453 |
| 01.10.2007 New South Wales Champs (NSW) | 22 | 254 | 506 |
| 03.02.2008 Kempsey Challenge & Cup (NSW) | 6 | 428 | 374 |
| 25.01.2009 City of Sydney International Masters (NSW) | 8 | 374 | 431 |
| 25.01.2009 City of Sydney International Masters (NSW) | 19 | 294 | 431 |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 24 | 403 | 367 |
| 05.10.2009 NSW CHAMPIONSHIPS (NSW) | 2 | 317 | 400 |
| 05.04.2010 Aus Championship (SA) | 22 | 290 | 425 |
| 04.10.2010 NSW Championships (NSW) | 14 | 350 | 441 |
| 23.10.2010 Redcliffe Saturday (QLD) | 6 | 463 | 347 |
| 30.01.2011 City of Sydney International Masters (NSW) | 8 | 418 | 384 |
| 17.07.2011 Winter Masters (NSW) | 20 | 370 | 451 |
| 03.10.2011 NSW Championships (NSW) | 11 | 428 | 334 |
| 01.10.2012 NSW Championships (NSW) | 8 | 458 | 347 |
| 21.04.2014 Australian Championship (NSW) | 7 | 413 | 484 |
| Head-to-head after 16 games | 6 | 10 | |
| Average score | 365.93 | 411 | |
| Spread: | -721 | 721 | |